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공지사항

최근에 올라온 글

MB4C+ revised

◆ Mockingboard 4c / 2024. 7. 11. 17:46

MB4C+ revised and enhanced for..

 

Now user can select SLOT#4 or SLOT#5

It isn't needed but some of user suggested and applied.

If S/W is upper ; SLOT#4 

If S/W is down ; SLOT#5

 

'Reset' hides the mocking board

When the user pressed 'Reset' and tried to reboot, it stopped on $c400 cause there was ROM code missing cause MB4C occupied there and needed to power OFF/ON or '$C600G'

Now it automatically returns and no more brake stops.

It wasn't a bug, the music construct set requested user to press 'RESET' to stop playing music.. so I couldn't remove MB4c from the SLOT.

but, I gave it up... and now we don't have to bother the brake while restarting.

 

Internally patched for the Prince of Persia.

 

I got a report that he couldn't run The Prince of Persia

I didn't believe before to test it but, I tested it and found he is correct.

It has a very strange hang while loading and doesn't start...

it made me research some more and now I can make it work with it.

I will consider the software cause it looks like a kind of bug.

And I will modify the position of screw holes for IIc 4000 after that we could have only one version of MB4C+ for all of APPLE IIc(+) computers.

 

Thanks, friends and customers..

Have a good day

Ian Kim

 

 

Posted by 이안김
, |

Dear friend and customers,

 

I'm updating the PS2 keyboard adapter series.

APPLE][, APPLE //e, IIc  and IIc+

all keyboard adaptors would allow present(Original) Keyboard connection and will work together with the PS2 keyboard.

For this,  It needs to be designed a new PCB.

I will post it when It is ready.

Thanks a lot

 

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Posted by 이안김
, |

User review

◆ SD MIDI ][+ / 2024. 2. 17. 19:07

https://www.facebook.com/1557592920/videos/771024690735918/

 

로그인 또는 가입하여 보기

Facebook에서 게시물, 사진 등을 확인하세요.

www.facebook.com

 

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Posted by 이안김
, |

SD Smart Drive메뉴얼첨부

 

FDD1, AUX FDD2에대한 내용을 조금 보강한 한글 메뉴얼입니다.

 

감사합니다.

 

SD Smart Drive 상세 메뉴얼3.pdf
2.90MB

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Posted by 이안김
, |

HAPPY NEW YEAR 2024

NOTICE / 2024. 1. 1. 10:58

Dear customers and friends,

 

Your success and happiness lie in you. Resolve to keep happy, and your joy and you shall form an invincible host against difficulties. May the New Year 2024 bring you all the joy and success in life!

 

 

https://blog.naver.com/ethanj9859

 

 

 

Thank you very much,

Ian Kim

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Posted by 이안김
, |

Mr. Steph made it and sent STL file.

If you have a 3D printer, you can print it and can use it to hold speakers in APPLE //c

When I ready, I will provide those clips for buyers.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MockBracket.STL
0.02MB

 

Mr. Steph, thank you very much.

 

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Posted by 이안김
, |

It isn't my project.
Mr. Trapung is a member of apple II cafe in the naver

---------------------------------------------------------------------------------------------
https://cafe.naver.com/appleii/19579 

This is a 4-channel sound tracker using PWM. Outputs through the main speaker.

 

reference:

 

https://slideplayer.com/slide/6969467/

https://www.yumpu.com/en/document/read/23761479/real-sound-for-8-bit-apple-iis-kansasfest

http://michaeljmahon.com/RTSynth.html

 

While looking for information on the sound of Apple speakers, I came across SoftDAC.

If I did well, I thought I would be able to configure multiple channels.

 

Set the sampling rate to 22050Hz / 4 = 5558Hz

Wav length is limited to 256 bytes.

 

Like the reference material, it is a 5bit DAC.

At the point when DACs were available, channel mixers were also feasible.

Because 1 cycle op is required for cycle matching, the 65C02 instruction is used.

 

 

problem)

  - Due to the low sampling rate of 5558Hz, it is lacking in high notes,

  - In the data tracking part, the DAC loop is exited, and at this time, 'Pop' noise occurs.

    => This is more noticeable in fast tempo music. Tick,. Tick,... Tick Tick.. ㅌㅌㅌ

  - The wav length is 256 bytes, making it difficult to properly express the instrument tone.

 

 

There are currently 6 types of instruments (wav): square, sine, triangle, noise, slap bass, and drum.

It can roughly imitate Famicom and MSX's PSG.

 

Sample sounds include Super Mario, 1943, and Puyo Puyo. (Extract data from mid file)

 

(Music file name: T_MARIO, T_1943, T_PUYO)

 

]BLOAD music file

]BRUN PLAY

 

Run it with .

 

Works with Apple II series (IIe, IIc) with 65C02 CPU or higher.

I couldn't take the practical test because I don't have any practical skills.

 

[Source] 4-channel sound tracker (APPLE ][ ®Apple Computer) | Posted by trapung

 

 

PWM을 이용한 4채널 사운드 트래커입니다. 본체 스피커로 출력합니다.

참고:

https://slideplayer.com/slide/6969467/

https://www.yumpu.com/en/document/read/23761479/real-sound-for-8-bit-apple-iis-kansasfest

http://michaeljmahon.com/RTSynth.html

애플 스피커의 사운드 관련 자료를 찾다가 SoftDAC을 찾게 되었는데,

잘만하면 여러채널을 구성할 수 있을것 같았습니다.

샘플링 레이트를 22050Hz / 4 = 5558Hz에 맞추고

Wav 길이를 256 bytes로 제한했습니다.

참고자료와 마찬가지로 5bit DAC 이구요.

DAC가 가능한 시점에서 채널 믹서도 실현가능했습니다.

Cycle 맟추느라 1cycle op도 필요해서 65C02 명령어를 사용합니다.

문제점)

- 5558Hz란 낮은 샘플링 레이트 때문에 고음에서 딸림,

- 데이터를 트래킹하는 부분에서 DAC루프를 빠져나오게 되는데 이때 'Pop' 노이즈가 발생

=> 빠른 템포의 음악에서 더욱 두드러집니다. 틱,. 틱,... 틱틱.. ㅌㅌㅌ

- wav길이가 256byte로 악기 음색을 제대로 표현하기 어려움

악기(wav)는 현재 square, sine, triangle, noise, slap bass 및 drum의 6종입니다.

패미컴, MSX의 psg를 얼추 흉내낼 수 있습니다.

샘플 사운드로 슈퍼마리오 및 1943, 뿌요뿌요가 들어있어요. (mid 파일에서 데이터 추출)

(음악파일이름: T_MARIO, T_1943, T_PUYO )

]BLOAD 음악파일

]BRUN PLAY

로 실행합니다.

65C02 CPU 이상의 Apple II 시리즈( IIe, IIc ) 에서 작동합니다.

실기가 없는 관계로 실기테스트는 못했습니다.

 

4채널 사운드 트래커

대한민국 모임의 시작, 네이버 카페

cafe.naver.com

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, |

MIDI songs

◆ SD MIDI ][+ / 2023. 11. 10. 12:41

Hello,

 

It contains a few Beatles songs.

Of course, it can be played on SD MIDI ][+ and Passport MIDI card.

 

Enjoy it

thebeatles.dsk
0.14MB

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, |

Dear friends and customers,

 

PS2 keyboard adaptor is good for APPLE II but, now a day the PS2 keyboard also not easy to find...

Anyway, there are still good PS2 compatible USB keyboard.

 

8310 BOSSTON

With a USB adaptor and then it works great all of my keyboard adaptors.

 

 

 

 

I think that some of the other  USB keyboards also may work on a PS2 adaptor.

but, the 8310 BOSSTON keyboard is cheap and black and white color one exists.

I tested it on //e,//c and ][+ PS2 keyboard adapter. 

 

Regard;

Ian Kim

 

 

 

 

Posted by 이안김
, |

Dear customers and friends,

 

There are a lot of cost issues that happened. for examples, CPLD chips price increased more than 4 times due to this price I stop to make A2 OverDrive cards and I'm not easy to make with well-priced cards. also 65C22 chips price is $10 now it was $3 before when I start developing it. other environment costs also increasing.

And I couldn't keep today's price and from April. the selling price will increase +10%.

Please buy/order before April, then you could have today's price.

Sorry for this.

 

Regards;

Ian kim

 

Posted by 이안김
, |

Mockingboard.asm
0.01MB

 

It isn't my code and I found it somewhere...

The code shows the basic Mockinboard control way and ISR(Interrupt service routine).

It isn't a music player just routine to use AY38910 with 6522 chip.

 

 

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Posted by 이안김
, |

 

Before explaining the new MIDI command,

I asked last time you to learn about Note ON and Program Change.

Have you learned it?

You need to learn this 'Note ON' and 'Program Change'

 

As you tested it, It plays one single voice.

Now You can learn how to Play more voices at the same time.

For Example, to play Do Mi Sol at the same time,

In Piano, You have to push Do, Mi, Sol at the same time.

It could achieve just Keep push Do, Mi,Sol  note at the same time.

Pressing Keyboard is the 'Note ON'.

So, you just send this MIDI data.

And if you want OFF the sound,

Just send 'Note OFF' to the channel.

 

To play Notes, You have to Know the MIDI keyboard numbers as attached.

 

Find the Do, Mi, Sol and It is 60,64,67 

So add code as under..

10 AC = 49320 

20 AD = 49321 

100 POKE AC,19: POKE AC,17 

200 POKE AD,144: POKE AD,60: POKE AD,127

210 POKE AD,144: POKE AD,64: POKE AD,127

220 POKE AD,144: POKE AD,67: POKE AD,127

 

* This 144 is 'NoteON' MIDI  command

 

And Run it

 

]RUN

 

If you want a small delay between NOTE ON

 

205 GOSUB 300

215 GOSUB 300

299 END

 

300 FOR D=1 TO 100:NEXT D

399 RETURN

 

Now, You could have step Playing notes.

 

And now, you will learn about 'Note OFF'

Note off is release your keyboard.

Note ON is pressing the keyboard now release the keyboard is Note OFF.

 

You can do it as 80h+Channel

So if you want '1st channel Note OFF'

POKE AD,128: POKE AD,64: POKE AD,127

 

Then The sound would off the keyboard.

 

Now, you learned 

Note ON

Program Change

Note OFF

and simple delay.

 

It is a very simple guide and would like this MIDI approach by BASIC code.

For more tricks, You need to learn some more about MIDI commands.

Hope you enjoy it.

 

Thanks

Ian Kim

 

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Posted by 이안김
, |

 

Hi Friends and customers,

 

I would like to explain how to use SD MIDI ][+ on BASIC.

SD MIDI ][+ card with a sound module, it would make a MIDI sound card for APPLE II.

But, unfortunately, APPLE II has limited Software to play MIDI sound.

SD MIDI ][+ users could play *.MID songs with MIDI Player.

And I believe that someday people would like to play MIDI card for better sound on APPLE II.

I will explain how to use SD MIDI ][+ card on BASIC in this column.

Users can use it in a straightforward way on BASIC.

Play Note and Stop the Note and with proper delay, It could be a MIDI song player.

 

Let's start to play BASIC for MIDI sound.

 

Try this code to make Sound.

*You need to key in all BASIC code, it would make you understand it.

** SD MIDI ][+ need to SLOT#2.

 

10 AC = 49320 ;Slot #2. MIDI control port

20 AD = 49321 ;Slot #2, MIDI Data port

100 POKE AC,19: POKE AC,17 ;MC 6850 init

200 POKE AD,144: POKE AD,50: POKE AD,127 ; Send data

 

]RUN

 

Can you hear any sound?

If there is no sound, try to check if card SLOT #2 and Speaker are ON.

 

If you could hear sound.. it is the easiest way to use MIDI card on your APPLE II.

And Now, let's change the musical instrument to another.

Add this code.

 

110 POKE AD,192: POKE AD,127

 

And RUN it

 

]RUN

 

And now,

What do you hear?

Did you still think making MIDI sound is hard on APPLE II?

 

Now, you need to learn the Data that it sent..

The code of POKE AD,( )

You may need to find the MIDI specification.

 

And What I tested in the code..

NOTE ON

and

Program Change

 

Thanks

 

 

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Posted by 이안김
, |

7% discount coupon

NOTICE / 2022. 6. 23. 08:49

Dear friends and customers,

 

 

Please email me with this Coupon information then you can have a 7% discount on the eBay price.

 

Coupon: 'BUYSD'

 

Item list on eBay

https://www.ebay.com/sch/ksd09/m.html

 

 

Thanks

Ian Kim

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Posted by 이안김
, |

Dear Friends and Customers,

 

SD MIDI ][+ is completed and start to sell SD MIDI ][+ on eBay and here.

https://www.ebay.com/itm/284830233376?hash=item4251347320:g:yB0AAOSwCSRijxWc 

 

SD 미디 [+ (APPLEII 미디 카드) | eBay

SD MIDI][+ is compatible thePassport MIDI card and has a capable to use MIDI sound module. SD MIDI ][+. And included a SD MIDI][+ Player as bundle which can play . MID files on APPLE II. Enjoy your APPLE II again with SD MIDI ][+.

www.ebay.com

 

 

Sound recording

It has noise but this noise isn't from MIDI card It from Video capture card.

https://youtu.be/bsyhBl-0sUY

https://youtu.be/i5H97SPECXA

User's manual

 

SD MIDI II+ users manual.pdf

 

drive.google.com

Please email me for a better price than eBay.

Anyway, some countries are not available good priced shipping way.

Please also refer to the eBay item descriptions.

 

Thanks

Ian Kim

 

 

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Posted by 이안김
, |

Dear Friends and Customers,

 

The new board arrived and I'm testing it now.

https://youtu.be/ljsOEcQIxbo

 

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, |

ORDER DIRECT for less price

NOTICE / 2022. 5. 14. 21:31

My products are on eBay But, they charge too much fees...

https://www.ebay.com/sch/ksd09/m.html

So, please email me for direct purchase through the Paypal system with 7% discounted price.

(Paypal customer care system still covers buyers)

 

 

 

Thanks 

Ian Kim




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Posted by 이안김
, |

Dear friends and customers,

I think, I really like music on the computer. Such as FM sound and MIDI sound are good for my APPLE II life and like to think about new/better sound cards for my APPLE II.
In fact, I'm not good at the piano... my son plays better... but, still dream of playing the piano with my own song...
But I just I have some talent for making hardware but not good for playing musical instruments...  ;(
If Someone makes a good melody it would be always welcome to the world and then could play the melody on my APPLE II.

The SD MIDI II+ card was discontinued for so long time and need to make another batch for my friends and customers.

In this version of the SD MIDI ][+ would be just a little revised.

Before, I considered it a lot but, I'm not sure if someone would like my idea or just let it be a new trial for fun so just revise the version.

 

I received the prototype PCB and tested it. works as I expected.

 

 

Now, I'm thinking about which color would be good for this card...

Anyway, Please wait 2 more weeks then I could start to make the commercial cards.

Thanks for waiting.
Ian





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Posted by 이안김
, |

VGM Player V1.25B

◆ SD Music card / 2022. 5. 12. 23:36

Dear friends and customers,

VGM Player is a Music Player for SD Music/Deluxe card.

In the beginning, It only supported VGM music files but, now supports IMF and DRO  music files.

So, Now You can play OPL2 DOSBOX DRO V1.0 music file.

Enjoy it on your SD Music deluxe card and thanks again your purchasing it.

 

New version was uploaded into the same link of VGM Player.(please check your email/message when you purchased the card, I sent a link for VGM Player)

 

Thanks a lot

Ian Kim

 

 

 

 

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Posted by 이안김
, |

 

 

SDBIOS.ROM
0.11MB

Dear friends and customers,

Please update your card firmware to V2.76B.

It has been internally patched as under.

But, If you don't use an LCD dial, you don't have differences.

 

What was updated

Patched on Making new Blank DISK image creating (Name selection was limited but now up to 99 disks)

Simplified internal routine for less firmware size. (It would help for further reserved function)

 

How to update

1) Copy the file on your SD memory card in Root location.

2) Please update by '*' on the Boot Menu.

3) After finished, Please check if the firmware version changed on the Boot menu.

4) Reboot your APPLE II and use it.

 

 

** Notice for firmware V2.76x **

From this version, the FDD reading method was changed and some of *.NIB files may read at a slow speed.

In this case, It needs to convert the DISK SKEW of the NIB image file.

To solve this slow speed issue, Simply copy the image to self by COPY ][ PLUS.

It will help to read at a good speed.

If you having any other troubles, please let me know.

 

 

 

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